Where can I study the below Amazon architecture ?
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Study up on API design, SOA, relational dbs vs nosql, CAP thereom, requirements analysis, etc, etc, etc. Be able to understand and articulate tradeoffs. Ask clarifying questions, and take hints from the interviewer. Don't worry about initially asking too many questions, if you get off track they will gently encourage you to focus on something in particular. Look out for these moments and be receptive to them.
Here is the most valuable resource I found. It structures tons of learnings and links to a wealth of resources. Find the areas you are rusty on and dive in.